package thread_01;

public class Demo22 {
    public static void main(String[] args) throws InterruptedException {
        Object locker1 = new Object();
        Object locker2 = new Object();

        Thread t1 = new Thread(() ->{
            synchronized (locker1){
                try {
                    Thread.sleep(1000);
                } catch (InterruptedException e) {
//                    throw new RuntimeException(e);
                    e.printStackTrace();
                }
//                synchronized (locker2){
//                    System.out.println("t1 h获取了两把锁");
//                }
            }
            synchronized (locker2){
                System.out.println("t1 获取了两把锁");
            }
        });

        Thread t2 = new Thread(() ->{
            synchronized (locker1){
                try {
                    Thread.sleep(1000);
                } catch (InterruptedException e) {
//                    throw new RuntimeException(e);
                    e.printStackTrace();
                }
//                synchronized (locker1){
//                    System.out.println("t2 获取两把锁");
//                }
            }
//            减少锁嵌套
            synchronized (locker2){
                System.out.println("t2 获取两把锁");
            }
        });

        t1.start();
        t2.start();
        t1.join();
        t2.join();
    }
}
